Leslie hewitt



(No Model.)-

L. HEWITT.

BACK BAND BUCKLE.

No. 354,417. Patented Dec. 14, 1886.

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UNITED STATES PATENT OFFICE.

LESLIE HEXVITT, OF BUFFALO, NEYV YORK, ASSIGNOR OF ONE-HALF TO PRATT & LETOHVVORTH, OF SAME PLACE. A

BACK-BAND BUCKLE.

SPECIFICATION forming part of Letters Patent No. 354,417, dated December 14, 1886.

Application filed Scp'cmbcr 2, 1886. Serial No. 212,453. (No model.)

To aZZ whom it may concern.-

Be it known that 1, LESLIE HEWITT, of the city of Buffalo, in the county of Erie and State of New York, have invented a new and useful Improvement in Back-Band Buckles, of which the following is a specification.

This invention relates to an improven'ient in the means whereby the back-band hook which supports the chain traces is attached to the backhand.

The object of my invention is to provide the back-band hook with simple means whereby it can be readily attached to the backhand and easily adjusted thereon to accommodat the hook to the height of the traces.

My invention consists of the improvements which will be hereinafter fully described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of my improved back-band buckle. Fig. 2 is an end view thereof. Fig. 3 is an elevation of the buckle detached from the back-band. Fig. 4is a vertical section in Fig. 5 is a perspective view of the pivoted clamping-bail.

Like letters of reference refer to like parts in the several figures.

A represents a portion of the back band, which is constructed of webbing or other suitable material.

B represents the frame of the buckle, which is made of rectangular form, and composed of side bars, I), and connecting cross-bars Z).

0 represents the hook which supports the trace, and which is formed at the junction of two curved bars, at, depending from the lower ends of the side bars, I), and forming extensions thereof. The lower curved portion of the supporting-hook O is preferably slotted, or made bifurcated, and provided with a pivoted guard-hook, c, which enters between the jaws or bifurcated portions of the hook O and interlocks with the same, thereby preventing the traces from becoming detached from the supporting-hook.

E represents a cross-bar, arranged centrally between the cross-bars b b, and which forms with said cross-bars two loops, f f, through which the back-band Ais inserted in securing the buckle to the back-band.

g rgpresents a horizontal clamping bar or bail,which is pivoted to the buckle-frame, and

projecting'a short distance beyond the front side of the crossbar E, so as to leave a narrow space between the crossbar E and the clamping-bail g for the passage of the backband. The end portions of the clamping-bail g are bent at right angles to the main portion of the bail, as shown in Fig. 5, and the ends of these angular portions are bent inwardly, parallel with the horizontal portion of the bail, to form pivots g. The pivots g are fitted loosely innotches or recesses 71, formed in the rear side of the side bars, b, underneath the cross-bar E, the pivots being retained in their seats bythe back-band, which is interposed between the cross-bar E and the clampingbail g.

The cross-bar E is inclined or beveled inwardly from its upper toward its lower end, as shown in Figs. 2 and 4, so that by moving the pivoted bail g upwardly the back-band will be wedged tightly against the cross-bar E. The weight of the chain-trace has a tendency to draw thebuckle B downwardly,where by the clamping-bail g is forced tightly against the cross-bar E and the buckle rigidly held on the back-band. The cross-bar E is provided on its front side with longitudinal ribs or serrations e, which embed themselves in the web-v bing of the backhand, and thereby increase the clamping effect of the crossbar.

\Vhen it is desired to adjust the buckle to adapt the supporting-hook to the height of the traces, the pivoted clampingbail g is pressed downwardly, whereby the back-band is released and the buckle permitted to be moved up and down on the backhand. WVhen the buckle has been adjusted to the desired height, the clamping-bail is pressed upwardly to clamp the back-band, and the downward pressure exerted by the weight of the-chain-trace will tend to hold the clamping-bail in its proper position.

My improved attachment is very simple in construction, and enables the supporting-hook to be readily attached and adjusted to the desired position on the back-band.

I claim as my inveution- 1. The combination,with the backhand and supporting-hook O, ofabuckleframe, B, carrying the hook O, and provided with an inclined or beveled cross-bar, E, and a bail, 9, whereby the back-band is clamped against the cross-bar E, substantially as set forth.

2. The combination, with the backhand A loops, f f, a cross-bar E, having an inclined and supporting-hook O, of the buekleframe ribbed 0r serrated face, and a clamping-bail, B, provided with a cross-bar, E, having an in- 9, arranged above the crossbar E, substanclined serrated surface, and a bail, g, pivoted tiaily as set forth. v 5 to the buckle-frame and adapted to clamp the Witness my hand this 31st day of August, 15

back-band against the bar E by a downward 1886.

pressure upon the supporting-hook, substan- I LESLIE HEWITT. t-ialiy as set forth. Witnesses:

3. A back-band-hook attachment, consist- CARL F. GEYER,

1o ing of the buckle-frame 13, provided with two J NO. J. BONNER. 

